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Full Discussion: grep and loop files
Top Forums Shell Programming and Scripting grep and loop files Post 302205596 by kashik on Sunday 15th of June 2008 11:11:26 PM
Old 06-16-2008
Data grep and loop files
Hi ,
1. I want to grep two or three lines from a set of files and put the grepped lines into again a set of files.like
file1-greppedfile1
file2-greppedfile2

then again do some format to the grepped files with sed or awk then create another set of files.
How can I do this in loop?

2.I want to grep a date within a file.The date is at almost end of the file
but there are also some dates above the last date format which i have to grep.

Help will be appreciated...

Thanks
 

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LEARN ABOUT PLAN9

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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